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STA381BWS 数据表(PDF) 29 Page - STMicroelectronics

部件名 STA381BWS
功能描述  Sound Terminal 2.1-channel high-efficiency digital audio system
PDF  174 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA381BWS 数据表(HTML) 29 Page - STMicroelectronics

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STA381BWS
Device overview
The second processing stage embeds a mixing block, a biquadratic/crossover filter, a DRC
stage, the volume control, a DC cut filter and a post scaler. Depending on the device
settings, the following configuration and features are available:
2.1 output with individually configurable anticlipper/DRCs (Figure 7): two individually
configurable DRC/anticlippers are available while the eighth biquadratic filter, jointly
with the mixer block, can be used to perform LFE. This configuration and features
ensure the backward compatibility with previous Sound Terminal® products.
Figure 7. Processing path, second part: 2.1 output with individually configurable
anticlipper/DRCs
C ros sov er F requenc y
D eterm ined by XO Setting
(User Defin ed If
XO =0000)
C1Mx1
U s er-D efined
M ix C oeffic ients
+
Ch annel ½
Biq uad #8
--------------
Hi-p ass XO
Filter
Ch an n el 1
Vo lume
An ti-clipper
/
DRC
DC Cut
Filter
Po st Scale
C1Mx2
L
R
C2Mx1
+
Ch annel ½
Biq uad #8
--------------
Hi-p ass XO
Filter
Ch an n el 2
Vo lume
An ti-clipper
/
DRC
DC Cut
Filter
Po st Scale
C2Mx2
C3Mx1
+
Ch an n el 3
Biq uad #8
--------------
Lo w-p ass XO
filter
An ti-clipper
/
DRC
DC Cut
Filter
Po st Scale
C3Mx2
Ch an n el 3
Vo lume
Obsolete
Product(s)
- Obsolete
Product(s)



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